name: Solidity Foundry Artifact Generation
on:
  workflow_dispatch:
    inputs:
      product:
        type: choice
        description: 'product for which to generate artifacts; should be the same as Foundry profile'
        required: true
        options:
          - "automation"
          - "ccip"
          - "functions"
          - "keystone"
          - "l2ep"
          - "liquiditymanager"
          - "llo-feeds"
          - "operatorforwarder"
          - "shared"
          - "transmission"
          - "vrf"
      base_ref:
        description: 'commit or tag to be used as base reference, when looking for modified Solidity files'
        required: true

env:
  FOUNDRY_PROFILE: ci

jobs:
  changes:
    name: Detect changes
    runs-on: ubuntu-latest
    outputs:
      changes: ${{ steps.changes.outputs.sol }}
      product_changes: ${{ steps.changes-transform.outputs.product_changes }}
      product_files: ${{ steps.changes-transform.outputs.product_files }}
      changeset_changes: ${{ steps.changes-dorny.outputs.changeset }}
      changeset_files: ${{ steps.changes-dorny.outputs.changeset_files }}
    steps:
      - name: Checkout the repo
        uses: actions/checkout@9bb56186c3b09b4f86b1c65136769dd318469633 # v4.1.2
      - name: Find modified contracts
        uses: dorny/paths-filter@de90cc6fb38fc0963ad72b210f1f284cd68cea36 # v3.0.2
        id: changes
        with:
          list-files: 'csv'
          base: ${{ inputs.base_ref }}
          predicate-quantifier: every
          filters: |
            ignored: &ignored
              - '!contracts/src/v0.8/**/test/**'
              - '!contracts/src/v0.8/**/tests/**'
              - '!contracts/src/v0.8/**/mock/**'
              - '!contracts/src/v0.8/**/mocks/**'
              - '!contracts/src/v0.8/**/*.t.sol'
              - '!contracts/src/v0.8/*.t.sol'
              - '!contracts/src/v0.8/**/testhelpers/**'
              - '!contracts/src/v0.8/testhelpers/**'
              - '!contracts/src/v0.8/vendor/**'
            other_shared:
              - modified|added: 'contracts/src/v0.8/(interfaces/**/*.sol|*.sol)'
              - *ignored
            sol:
              - modified|added: 'contracts/src/v0.8/**/*.sol'
              - *ignored   
            product: &product
              - modified|added: 'contracts/src/v0.8/${{ inputs.product }}/**/*.sol'      
              - *ignored
            changeset:
              - modified|added: 'contracts/.changeset/!(README)*.md' 

      # Manual transformation needed, because shared contracts have a different folder structure
      - name: Transform modified files
        id: changes-transform
        shell: bash
        run: |
          if [ "${{ inputs.product }}" = "shared" ]; then
            echo "::debug:: Product is shared, transforming changes"
            if [[ "${{ steps.changes.outputs.product }}" == "true" && "${{ steps.changes.outputs.other_shared }}" == "true" ]]; then
              echo "::debug:: Changes were found in 'shared' folder and in 'interfaces' and root folders"
              echo "product_changes=true" >> $GITHUB_OUTPUT
              echo "product_files=${{ steps.changes.outputs.product_files }},${{ steps.changes.outputs.other_shared_files }}" >> $GITHUB_OUTPUT
            elif [[ "${{ steps.changes.outputs.product }}" == "false" && "${{ steps.changes.outputs.other_shared }}" == "true" ]]; then
              echo "::debug:: Only contracts in' interfaces' and root folders were modified"
              echo "product_changes=true" >> $GITHUB_OUTPUT
              echo "product_files=${{ steps.changes.outputs.other_shared_files }}" >> $GITHUB_OUTPUT
            elif [[ "${{ steps.changes.outputs.product }}" == "true" && "${{ steps.changes.outputs.other_shared }}" == "false" ]]; then
              echo "::debug:: Only contracts in 'shared' folder were modified"
              echo "product_changes=true" >> $GITHUB_OUTPUT
              echo "product_files=${{ steps.changes.outputs.product_files }}" >> $GITHUB_OUTPUT
            else
              echo "::debug:: No contracts were modified"
              echo "product_changes=false" >> $GITHUB_OUTPUT
              echo "product_files=" >> $GITHUB_OUTPUT
            fi
          else
           echo "product_changes=${{ steps.changes.outputs.product }}" >> $GITHUB_OUTPUT
           echo "product_files=${{ steps.changes.outputs.product_files }}" >> $GITHUB_OUTPUT
          fi

      - name: Check for changes outside of artifact scope
        uses: ./.github/actions/validate-artifact-scope
        if: ${{ steps.changes.outputs.sol == 'true' }}
        with:
          sol_files: ${{ steps.changes.outputs.sol_files }}
          product: ${{ inputs.product }}

  gather-basic-info:
    name: Gather basic info
    if: ${{ needs.changes.outputs.product_changes == 'true' }}
    runs-on: ubuntu-22.04
    needs: [ changes ]
    outputs:
      foundry_version: ${{ steps.extract-foundry-version.outputs.foundry-version }}
    steps:
      - name: Checkout the repo
        uses: actions/checkout@9bb56186c3b09b4f86b1c65136769dd318469633 # v4.1.2
        with:
          fetch-depth: 0

      - name: Extract Foundry version
        id: extract-foundry-version
        uses: ./.github/actions/detect-solidity-foundry-version
        with:
          working-directory: contracts

      - name: Copy modified changesets
        if: ${{ needs.changes.outputs.changeset_changes == 'true' }}
        run: |
          mkdir -p contracts/changesets
          files="${{ needs.changes.outputs.changeset_files }}"
          IFS=",'
          for changeset in $files; do
            echo "::debug:: Copying $changeset"
            cp $changeset contracts/changesets
          done

      - name: Generate basic info and modified contracts list
        shell: bash
        run: |
          echo "Commit SHA used to generate artifacts: ${{ github.sha }}" > contracts/commit_sha_base_ref.txt
          echo "Base reference SHA used to find modified contracts: ${{ inputs.base_ref }}" >> contracts/commit_sha_base_ref.txt     
          
          IFS=',' read -r -a modified_files <<< "${{ needs.changes.outputs.product_files }}"
          echo "# Modified contracts:" > contracts/modified_contracts.md
          for file in "${modified_files[@]}"; do
            echo " - [$file](${{ github.server_url }}/${{ github.repository }}/blob/${{ github.sha }}/$file)" >> contracts/modified_contracts.md
            echo "$file" >> contracts/modified_contracts.txt
          done

      - name: Upload basic info and modified contracts list
        uses: actions/upload-artifact@0b2256b8c012f0828dc542b3febcab082c67f72b # v4.3.4
        timeout-minutes: 2
        continue-on-error: true
        with:
          name: tmp-basic-info
          path: |
            contracts/modified_contracts.md
            contracts/modified_contracts.txt
            contracts/commit_sha_base_ref.txt
            contracts/changesets
          retention-days: 7

  # some of the artifacts can only be generated on product level, and we cannot scope them to single contracts
  # some product-level modifications might also require shared contracts changes, so if these happened we need to generate artifacts for shared contracts as well
  coverage-and-book:
    if: ${{ needs.changes.outputs.product_changes == 'true' }}
    name: Generate Docs and Code Coverage reports
    runs-on: ubuntu-22.04
    needs: [changes, gather-basic-info]
    steps:
      - name: Prepare exclusion list
        id: prepare-exclusion-list
        run: |
          cat <<EOF > coverage_exclusions.json
           ["automation", "functions", "vrf"]
          EOF
          coverage_exclusions=$(cat coverage_exclusions.json | jq -c .)
          echo "coverage_exclusions=$coverage_exclusions" >> $GITHUB_OUTPUT

      - name: Checkout the repo
        uses: actions/checkout@9bb56186c3b09b4f86b1c65136769dd318469633 # v4.1.2

      - name: Setup NodeJS
        uses: ./.github/actions/setup-nodejs

      - name: Create directories
        shell: bash
        run: |
          mkdir -p contracts/code-coverage  

      - name: Install Foundry
        uses: foundry-rs/foundry-toolchain@8f1998e9878d786675189ef566a2e4bf24869773 # v1.2.0
        with:
          version: ${{ needs.gather-basic-info.outputs.foundry_version }}

      # required for code coverage report generation
      - name: Setup LCOV
        uses: hrishikesh-kadam/setup-lcov@f5da1b26b0dcf5d893077a3c4f29cf78079c841d # v1.0.0

      - name: Run Forge build for product contracts
        if: ${{ needs.changes.outputs.product_changes == 'true' }}
        run: |
          forge --version
          forge build
        working-directory: contracts
        env:
          FOUNDRY_PROFILE: ${{ inputs.product }}

      - name: Run coverage for product contracts
        if: ${{ !contains(fromJson(steps.prepare-exclusion-list.outputs.coverage_exclusions), inputs.product) && needs.changes.outputs.product_changes == 'true' }}
        working-directory: contracts
        run: forge coverage --report lcov --report-file code-coverage/lcov.info
        env:
          FOUNDRY_PROFILE: ${{ inputs.product }}

      - name: Generate Code Coverage HTML report for product contracts
        if: ${{ !contains(fromJson(steps.prepare-exclusion-list.outputs.coverage_exclusions), inputs.product) && needs.changes.outputs.product_changes == 'true' }}
        shell: bash
        working-directory: contracts
        run: genhtml code-coverage/lcov.info --branch-coverage --output-directory code-coverage

      - name: Run Forge doc for product contracts
        if: ${{ needs.changes.outputs.product_changes == 'true' }}
        run: forge doc --build -o docs
        working-directory: contracts
        env:
          FOUNDRY_PROFILE: ${{ inputs.product }}

      - name: Upload Artifacts for product contracts
        if: ${{ needs.changes.outputs.product_changes == 'true' }}
        uses: actions/upload-artifact@0b2256b8c012f0828dc542b3febcab082c67f72b # v4.3.4
        timeout-minutes: 2
        continue-on-error: true
        with:
          name: tmp-${{ inputs.product }}-artifacts
          path: |
            contracts/docs
            contracts/code-coverage/lcov-.info
            contracts/code-coverage
          retention-days: 7

  # Generates UML diagrams and Slither reports for modified contracts
  uml-static-analysis:
    if: ${{ needs.changes.outputs.product_changes == 'true' }}
    name: Generate UML and Slither reports for modified contracts
    runs-on: ubuntu-22.04
    needs: [changes, gather-basic-info]
    env:
      GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
    steps:
      - name: Checkout the repo
        uses: actions/checkout@9bb56186c3b09b4f86b1c65136769dd318469633 # v4.1.2
        with:
          fetch-depth: 0

      - name: Setup NodeJS
        uses: ./.github/actions/setup-nodejs

      - name: Install Foundry
        uses: foundry-rs/foundry-toolchain@8f1998e9878d786675189ef566a2e4bf24869773 # v1.2.0
        with:
          version: ${{ needs.gather-basic-info.outputs.foundry_version }}

      - name: Install Sol2uml
        run: |
          npm link sol2uml --only=production

      - name: Set up Python
        uses: actions/setup-python@39cd14951b08e74b54015e9e001cdefcf80e669f #v5.1.1
        with:
          python-version: '3.8'

      - name: Install solc-select and solc
        uses: ./.github/actions/setup-solc-select
        with:
          to_install: '0.8.19'
          to_use: '0.8.19'

      - name: Install Slither
        uses: ./.github/actions/setup-slither

      - name: Generate UML
        shell: bash
        run: |
          contract_list="${{ needs.changes.outputs.product_files }}"
          
          # modify remappings so that solc can find dependencies
          ./contracts/scripts/ci/modify_remappings.sh contracts contracts/remappings.txt
          mv remappings_modified.txt remappings.txt
          
          ./contracts/scripts/ci/generate_uml.sh "./" "contracts/uml-diagrams" "$contract_list"

      - name: Generate Slither Markdown reports
        run: |
          contract_list="${{ needs.changes.outputs.product_files }}"
          
          echo "::debug::Processing contracts: $contract_list"
          ./contracts/scripts/ci/generate_slither_report.sh "${{ github.server_url }}/${{ github.repository }}/blob/${{ github.sha }}/" contracts/configs/slither/.slither.config-artifacts.json "." "$contract_list" "contracts/slither-reports" "--solc-remaps @=contracts/node_modules/@"

      - name: Upload UMLs and Slither reports
        uses: actions/upload-artifact@0b2256b8c012f0828dc542b3febcab082c67f72b # v4.3.4
        timeout-minutes: 10
        continue-on-error: true
        with:
          name: tmp-contracts-artifacts
          path: |
            contracts/uml-diagrams
            contracts/slither-reports
          retention-days: 7

      - name: Validate if all Slither run for all contracts
        uses: ./.github/actions/validate-solidity-artifacts
        with:
          validate_slither_reports: 'true'
          validate_uml_diagrams: 'true'
          slither_reports_path: 'contracts/slither-reports'
          uml_diagrams_path: 'contracts/uml-diagrams'
          sol_files: ${{ needs.changes.outputs.product_files }}

  gather-all-artifacts:
    name: Gather all artifacts
    if: ${{ needs.changes.outputs.product_changes == 'true' }}
    runs-on: ubuntu-latest
    needs: [coverage-and-book, uml-static-analysis, gather-basic-info, changes]
    steps:
      - name: Download all artifacts
        uses: actions/download-artifact@65a9edc5881444af0b9093a5e628f2fe47ea3b2e # v4.1.7
        with:
          path: review_artifacts
          merge-multiple: true

      - name: Upload all artifacts as single package
        uses: actions/upload-artifact@0b2256b8c012f0828dc542b3febcab082c67f72b # v4.3.4
        with:
          name: review-artifacts-${{ inputs.product }}-${{ github.sha }}
          path: review_artifacts
          retention-days: 60

      - name: Remove temporary artifacts
        uses: geekyeggo/delete-artifact@24928e75e6e6590170563b8ddae9fac674508aa1 # v5.0
        with:
          name: tmp-*

      - name: Print Artifact URL in job summary
        env:
          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
        run: |
          ARTIFACTS=$(gh api -X GET repos/${{ github.repository }}/actions/runs/${{ github.run_id }}/artifacts)
          ARTIFACT_ID=$(echo "$ARTIFACTS" | jq '.artifacts[] | select(.name=="review-artifacts-${{ inputs.product }}-${{ github.sha }}") | .id')
          echo "Artifact ID: $ARTIFACT_ID"
          
          echo "# Solidity Review Artifact Generated" >> $GITHUB_STEP_SUMMARY
          echo "Base Ref used: **${{ inputs.base_ref }}**" >> $GITHUB_STEP_SUMMARY
          echo "Commit SHA used: **${{ github.sha }}**" >> $GITHUB_STEP_SUMMARY
          echo "[Artifact URL](https://github.com/${{ github.repository }}/actions/runs/${{ github.run_id }}/artifacts/$ARTIFACT_ID)" >> $GITHUB_STEP_SUMMARY

  notify-no-changes:
    if: ${{ needs.changes.outputs.product_changes == 'false' }}
    needs: [changes]
    runs-on: ubuntu-latest
    steps:
      - name: Print warning in job summary
        shell: bash
        run: |
          echo "# Solidity Review Artifact NOT Generated" >> $GITHUB_STEP_SUMMARY
          echo "Base Ref used: **${{ inputs.base_ref }}**" >> $GITHUB_STEP_SUMMARY
          echo "Commit SHA used: **${{ github.sha }}**" >> $GITHUB_STEP_SUMMARY
          echo "## Reason: No modified Solidity files found for ${{ inputs.product }}" >> $GITHUB_STEP_SUMMARY
          echo "* no modified Solidity files found between ${{ inputs.base_ref }} and ${{ github.sha }} commits" >> $GITHUB_STEP_SUMMARY
          echo "* or they are located outside of ./contracts/src/v0.8 folder" >> $GITHUB_STEP_SUMMARY
          echo "* or they were limited to test files" >> $GITHUB_STEP_SUMMARY
          exit 1